SaaS is the business model the US LLC feels tailor-made for: recurring revenue through Stripe, customers on three continents, no warehouse, no supply chain, pure scale. And still we regularly see two gaps in software founders' setups, one American and one European. Here is the complete picture, from the first subscription to the investor question.
The foundation: why SaaS and the LLC get along so well
The basics fall into place quickly: transparent taxation, profits taxed where you live, the Stripe account and its survival rules, invoicing EU business clients under reverse charge. For a B2B SaaS founder with a clean residence setup, that genuinely takes care of most things, and the rest of this article is about the two places where "most" does not mean "all".
Gap one, the American one: SaaS and sales tax
The half-sentence "services are not subject to sales tax" is true for consultants; for SaaS it is only partly true: a growing share of US states tax SaaS subscriptions like goods. Texas, for example, treats cloud software as one of its taxable data processing services, as the Texas Comptroller explains; New York, Pennsylvania and others take a similar line, while California has so far left SaaS alone. It becomes relevant in practice through economic nexus: your duty to register in a state only arises once you pass revenue or transaction thresholds there (often 100,000 dollars). Translated for your growth: in the early phase, US sales tax is usually a non-issue; once you have meaningful US revenue, it becomes a map exercise that you manage with tools like Stripe Tax and an annual threshold check instead of ignoring it. The sales tax primer has the system; by the way, your state of formation barely matters here, what counts are your customers' states.
Gap two, the European one: B2C subscriptions and VAT
If you also sell your SaaS to consumers in the EU, the rule we flagged as the B2C trap in the reverse charge article applies: VAT of the customer's country from the first euro, handled through the non-Union OSS scheme with one registration and quarterly returns. You set the switch in the product itself: if you sell B2B only (mandatory VAT number field at checkout, VIES check), you stay in relaxed reverse charge territory; if you offer consumer plans, you add OSS to your operating plan or put a merchant of record in between who takes over the tax duties in exchange for a margin. Both are legitimate; only ignoring it is not.
The growth path: from LLC to the investor question
SaaS has one trait no other model in this series shares: it might raise capital one day. Then the Delaware truth from the state comparison applies: US funds invest in Delaware C corporations, not in transparent LLCs, and the route there is a planned conversion (a flip), not a disaster. The consequence for today is relaxed: form the LLC for the bootstrap phase, with its tax and simplicity advantages, and keep the conversion in mind as a known exit, instead of paying corporation costs for years for a round that may never come. If you are building on venture capital from day one, you start differently, and we will tell you so in the consultation.
The SaaS checklist
Run your Stripe account by the three survival rules, split checkout into B2B and B2C and hang the tax logic on that, check US thresholds every year, keep withdrawals and records in the four-habit system, and answer the investor question honestly before a term sheet asks it for you.
Your next step
If your SaaS is getting ready to launch: order your LLC, with the Stripe and invoicing setup in the package. If your model includes B2C plans, meaningful US revenue or a funding perspective, book a consultation with Sebastian, held in English: one hour, honest feedback, 15-minute guarantee.
About the author
ZeroTax LLC is a service of Mount Bonnell Advisors in Austin, Texas.
Founder of Mount Bonnell Advisors, Austin, Texas. Supports SaaS founders from the first subscription to the Delaware flip and still tells most of them: bootstrap first, convert later.
Book a consultation with Sebastian (held in English only)